The bearings are replaceable on model 30. Foredom offers them.
Yes, The ball bearings from Foredom (Foredom number HP 61) are the
best to use.
Skateboard bearings are the same size. Get sealed bearings.
They are the same size, 8mm X 22mm X 7mm, industry number 608zz, but
Foredom has theirs specially made for the 30. They will run cooler
and last longer. I have had this conversation many times with Foredom
engineers. We ONLY use the correct Foredom ball bearings when we
repair a #30 handpiece.
Does anyone know -exactly- what tool to use for removing the older
model 30 top bearing?
On #30 handpieces built prior to July, 1997, We use a set of wedges
made to remove Jacobs chucks from the taper shaft. I bought our set
from MSC Industrial supply. Be very careful as uneven force to remove
the chuck can flex the spindle and cause it to not run true when
The Jewelry Equipment Dr.